Homer s



(No Model.)

H. S. GALLUP.

Patented May 11 m: norms Hum: cov wncraumo. w-snmn n FFIGE.

ENITED STATES- AT NT HOMER S. GALLUP, OF CLAY CENTRE, KANSAS, ASSIGNOR OF ONE-HALF TO E. L. GREEN, OF SAME PLACE.

PUMP.

, SPECIFICATION forming part of Letters Patent No. 582,277, dated May 11, 1897.

Application filed May 6, 1896. Serial No. 590,470 (No model.)

To all whom it may concern: the lower end of the inner cylinder 10 is Be'it known that I, HOMER S. GALLUP, a made water-tight and a tight packing procitizen of the United States, residing at Clay vided between the inner and the outer cylin- Centre, in the county of Clay and State of ders. To accomplish this important result, 55 Kansas, have invented a new and useful a valve-seat block 13 is fitted in the lower Pump, of which the following is a specificaend of the inner cylinder and is formed tion. with a valve-opening therethrough, which is My invention relates to pumps, and has for covered and uncovered by the valve 13, fitted its object to provide a simple direct double to the upper side of said block. The pack- 60 1o acting pump adapted to be used in an Arteing 14 is in the form of a ring and is clamped sian well of small diameter, the parts being at its inner edges directly to the under side compactly arranged to economize space and of the valve-seat block 13. From its point reduce the power necessary for its operation. of attachment to the valve -seat block the Further objects and advantages of this insaid packing 14 extends outside of the inner 6 5 I5 vention will appear in the following descripcylinder 10 and is bent or folded around the tion, and the novel features thereof will be lower edge of said inner cylinder so as to lie particularly pointed out in the appended in the space between the two cylinders. This claim. manner of arranging the packing-ring 14 pro- In the drawings, Figure l is a view of a vides a water-tight joint for the valve-seat 7o pump constructed in accordance with my inblock '13 and at the same time forms a tight vention. Fig. 2 is a central section of the packing between the two telescoping cylintelescoping cylinders and contiguous parts, ders. said cylinders being extended. Fig. 3 is a hen the leveris operated,the exterior and similar view showing the cylinders coninterior cylinders are reciprocated simnlta- 75 tracted. neously in opposite directions, one cylinder Similar numerals of reference indicate corascending during the descent of the other, responding parts in allthe figures of the drawand the result of this operation is that when ings. the cylinders are in the extended positions 1 designates a pump-stock or lift-pipe proshown in Fig. 2 the exterior cylinder is full 80 3o vided with an outlet-spout 2 or its equivalent and when the parts have been operated to and extended above the same to form a bearcontract the cylinders, as shown in Fig. 3, ing for the operating-lever 3, to which are the contents of the exterior cylinder have attached the operating;rods 4. This tubular passed into the interior cylinder and a porpump'stock or lift-pipe forms a guide for tion of said contents has passed through the 85 rings or disks 6 and 7, which are mounted to inner cylinder and has been elevated in the slide thereon, and connected, respectively, to lift-pipe by reason of the inner cylinder besaid rings or disks by means of connecting ing of smaller capacity than the outer cylinbars or straps 8 and 9 are the telescoping indernamely, approximately one-half the caner and outer cylinders 10 and 11. pacity. If the inner cylinder is made of half 40 The inlet end of the pump-stock or liftthe capacity of the outer cylinders, it will be pipe is fitted with an exterior plunger or pisseen that upon the inward stroke of the cylton-ring 12, which operatessnuglyin the bore inder, or the contracting stroke thereof, oneof the inner cylinder, and the lower end of half the capacity of the exterior cylinder will the inner cylinder is providedwith an upbe forced into the lift-pipe and during the 5 wardly-opening valve 13 and with packing 14 spreading stroke of the cylinders the entire to fit snugly in the interior of the outer cylcontents of the inner cylinder will be forced inder. The outer cylinder is provided at its into the lift-pipe, thus equally dividing the lower end with an inwardly-opening valve 15. contents of the exterior cylinder at each An important feature of the present invenstroke. In other words, one-half the capacity too tion is the manner in which the valve 13 and, of the exterior cylinder will be forced into the packing 14 are supported in place, whereby lift-pipe at each stroke of the cylinders.

The above construction provides for a compact arrangement of parts wherebya five-inch cylinder can be operated in a six-inch-tubed well, the connecting rods being spaced apart a distance not exceeding the diameter of the exterior cylinder.

Various changes in the form, proportion, and the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having described my invention, what I claim is In a pump of the class described, the combination of a stationary lift-pipe having a valveless passage therethrough and fitted at its lower end with an exteriorannular pist0nring 12, inner and outer spaced telescoping cylinders inclosing the lower end of the liftpipe, the inner of said cylinders snugly receiving in its bore said piston-ring of the liftpipe, ,an inwardly-opening valve fitted in the lower end of the outer cylinder, a valve-seat block fitted within the lower end of the inner cylinder, an inwardlyopening valve mounted on the upper side of said valve-seat block, a packing-ring secured at its inner edges directly to the under side of the valveseat block within the inner cylinder and bent or folded around the lower edge of said inner cylinder so as to lie in the space between the two cylinders and also form a water-tight packing for the valve-seat block, and means for communicating opposite reciprocatory movement to the inner and outer cylinders, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto amxed my signature in the presence of two witnesses.

HOMER S. JrAL-LUP.

Witnesses:

F. L. FLETCHER, B. E. GREEN. 

